Challenger MT525B

The Challenger MT525B is a tractor produced by Challenger. It is equipped with a 365.2 ci 6.0 L engine. The listed engine power is Diesel (listed): 118 hp / 88.0 kW; Diesel (listed): 4 hp / 3.0 kW. Transmission: TechStar CVT. Operating weight: 11052 to 14835 pounds.

Overview

	2004 - 2011 Model year 2004-20072007-2011 MT500B SeriesRow-Crop tractor MT500B Series Row-Crop tractor

Production
Manufacturer	Challenger (a part of AGCO)
Row-Crop tractor
Built in Beauvais, France
The Challenger 525B is similar to the Massey Ferguson 6465 and 7465.

Variants
6465	similar Massey Ferguson model
7465	similar Massey Ferguson model

Challenger MT525B Engine
Caterpillar 6.0L 6-cyl diesel
Engine details ...

Challenger MT525B Power
Engine	118 hp 88.0 kW
PTO (claimed)	95 hp 70.8 kW
Drawbar (tested)	81.8 hp 61.0 kW
PTO (tested)	110.9 hp 82.7 kW
Performance test details ...

Mechanical
Two- or four-wheel drive
Final drives	inboard planetary
Differential lock	electro-hydraulic front and rear
Power steering
Hydraulic wet disc brakes
Trailer brakes	hydraulic OptOptional
Cab standard with heat and A/C. Optional pneumatic cab suspension and automatic climate control.

Capacity
Fuel	71 gal 268.7 L
AutoPower Hydraulic system	18.5 gal 70.0 L
CVT Hydraulic system	26.4 gal 99.9 L

Hydraulics
Type	closed center pressure flow compensating (PFC)
AutoPower Capacity	18.5 gal 70.0 L
CVT Capacity	26.4 gal 99.9 L
Pressure	2900 psi 200.0 bar
Rear valves	2 to 4
Total flow	29 gpm 109.8 lpm

Tractor hitch
Rear Type	II/III
AP Rear lift (at 24"/610mm)	8500 lbs 3855 kg
CVT Rear lift (at 24"/610mm)	11200 lbs 5080 kg
Front Hitch	optional
Front lift	5,500 lbs 2494 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540/1000 (1.375)
	540/540E/1000 OptOptional
Engine RPM	540@1980
	540E@1533
	1000@2000
	1000E@1548

Dimensions & Tires
2WD Wheelbase	112.1 inches 284 cm
4WD Wheelbase	109.5 inches 278 cm
Weight	11052 to 14835 pounds
Front tire	14L-16.1
Rear tire	18.4R38
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	120
Batteries	2
Battery CCA	420
Battery volts	12

References
Challenger MT500B AutoPower IV Product Information Guide published in 2004, by AGCO
Challenger MT500B Series published in 2005, by AGCO
Challenger MT500B TECHstar CVT Product Information Guide published in 2004, by AGCO
Challenger Specialty Wheel Tractors published in 2007

Engine

Engine Detail — 365.2 ci / 6.0 L Diesel

Manufacturer	Caterpillar 3056C
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled vertical inline
Displacement	365.2 ci 6.0 L
Bore/Stroke	3.937x5.00 inches 100 x 127 mm
Emissions	Tier II
Power	118 hp 88.0 kW
Fuel system	electronic direct injection
Cooling system	viscous fan
Air cleaner	dual paper elements
Compression	17.5:1
Rated RPM	2200
Idle RPM	800-2350
Starter volts	12
Starter power	4 hp 3.0 kW
Oil capacity	15.3 qts 14.5 L
Coolant capacity	29.6 qts 28.0 L

Transmission

Transmission options
32-speed partial power shift
24-speed partial power shift
continuously variable transmission

Transmission — AutoPower IV

Transmission	AutoPower IV
Type	partial power shift
Gears	32 forward and reverse
Clutch	hydraulic wet disc
Four synchronized gears (1-4) in two synchronized ranges (low/high) with a four-speed (A-D) power shift on the left-hand power shuttle lever.
With 18.4R38 rear tires.

Transmission — AutoPower VI

Transmission	AutoPower VI
Type	partial power shift
Gears	24 forward and reverse
Four gears with six power shift ranges. The AutoPower VI became acailable in 2005.

Transmission — TechStar CVT

Transmission	TechStar CVT
Type	continuously variable transmission
Gears	infinite forward and reverse (2-range)
Oil capacity	59.2 qts 56.0 L

Dimensions

Challenger MT525B Tires
Ag front	14L-16.1 (2WD)
	14.9R28 (4WD)
Ag rear	18.4R38

Dimensions
2WD Wheelbase	112.1 inches 284 cm
4WD Wheelbase	109.5 inches 278 cm
Length	168.5 inches 427 cm
Width	81.1 inches 205 cm
Height (cab)	112.8 inches 286 cm
Clearance (drawbar)	15.4 inches 39 cm
Flange rear axle
2WD Front tread	64.1 to 83 inches 162 to 210 cm
2WD Front tread	73.2 to 96 inches 185 to 243 cm (wide row-crop axle)
4WD Front tread	61.7 to 80.8 inches 156 to 205 cm
Rear tread	54.4 to 88.1 inches 138 to 223 cm

Challenger MT525B Weight
2WD Shipping	11052 lbs 5013 kg
4WD Shipping	11546 lbs 5237 kg
CVT 4WD Shipping	13084 lbs 5934 kg
4WD Operating	12180 lbs 5524 kg
CVT 4WD Operating	14835 lbs 6729 kg
Max Drawbar	3821 lbs 1733 kg
2WD Max front axle	4652 lbs 2110 kg
4WD Max front axle	7054 lbs 3199 kg
Max rear axle	12345 lbs 5599 kg

Tests

Tractor Tests
OECD 5153: diesel AutoPower IV 4WD
OECD 2193: diesel CVT 4WD

OCED Tractor Test 5153
Diesel AutoPower IV 4WD February 2004 - March 2004, Link: OCED Tractor Test 5153 file
PTO performance
Max power	110.9 hp 82.7 kW
Fuel use	6.4 gal/hour 24.2 l/hour
Power at rated engine speed	96.7 hp 72.1 kW
Fuel use	6.7 gal/hour 25.4 l/hour
Power at rated PTO speed	109.2 hp 81.4 kW
Fuel use	6.7 gal/hour 25.4 l/hour
Drawbar performance
Max power	60.2 hp 44.9 kW
Fuel use	5.6 gal/hour 21.2 l/hour
Gear 1LB used for power test.
Max pull	10,160 lbs 4608 kg
Gear 1TD used for pull test.

OCED Tractor Test 2193
Diesel CVT 4WD January 2004 - March 2004, Link: OCED Tractor Test 2193 file
PTO performance
Max power	106.5 hp 79.4 kW
Fuel use	6.3 gal/hour 23.8 l/hour
Power at rated engine speed	96.7 hp 72.1 kW
Fuel use	6.6 gal/hour 25.0 l/hour
Power at rated PTO speed	102.5 hp 76.4 kW
Fuel use	6.5 gal/hour 24.6 l/hour
Drawbar performance
Max power	81.8 hp 61.0 kW
Pull at 6.2 KPH
Max pull	14,310 lbs 6491 kg
Pull at 3.3 KPH

Photos

Challenger MT525B tractor photo